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|Title: ||Influence of low temperature on development, adult longevity and productivity of zaprionus indiana gupta (diptera : drosophilidae)|
|Authors: ||Amoudi, Mikky A.|
Diab, Fathi M.
Abou-Fannah, Salah S.M.
|Issue Date: ||1993 |
|Publisher: ||King Saud University|
|Citation: ||Journal of King Saud University, agriculture science: 5 (2); 263-274|
|Abstract: ||Development, adult longevity and productivity of Zaprionus indiana was studied in relation to constant Iow temperature in the laboratory. The data were used to develop a degree-day (DD) model for predicting population events in the field. An estimated 227.3 DD for male and 208.3DD forfemale (10.07 and 10. 13°C lower threshold for male and female) were required for development from egg to adult. Mean adult longevity ranged from 80.9 days for males and 88.9 days for females at 15 .O°C to 46.6 days for males and 52.9 days for females at 22.5°C. A higher egg mortality was observed at all the 4 constant temperatures tested than in the other stages. Females produced 218 eggs at 20.0°C and 395 eggs at 22.5°C. At 20.0 and 22.5°C, about 87.4 and 88.8% of the total number of eggs were produced during the initial 45 days of ovi position period, respectively.|
|Appears in Collections:||Journal of the King Saud University - Agricultural Sciences|
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